LDC (Managers), a private equity company, completed a minority investment in Solid Solutions, a provider of 3D CAD design software and solutions. Business Growth Fund, an investment company will exit its minority stake. Financial terms were not disclosed. “We are experiencing growing demand for our services from a large, expanding customer base, many of whom have been with us for over 20 years. With the support of BGF over the last three years, we have been able to significantly grow our existing activities and acquire complementary businesses that are now core to the Solid Solutions family," Alan Sampson, Solid Solutions CEO.